DIELECTRONIC 3L4L' NA-LIKE SATELLITES TO NE-LIKE KRYPTON RESONANCE LINES

Transitions from the doubly excited 2s(2)2p(5)3l4l' and 2s2p(6)3l4l' l evels of Na-like Kr25+ were observed in spectra from plasmas produced in laser-irradiated gas-puff targets. These transitions produce satell ites to n = 3-2 and n = 4-2 Ne-like Kr26+ resonance lines. High-resolu tion x-ray spectra were measured with a relative uncertainty of +/-0.0 01 Angstrom by means of a spherical crystal spectrograph. A simple kin etics model was successfully used to model the experimental spectra, t o assist the Line identification, and to demonstrate the potential of these lines for diagnosing the plasma conditions. In addition, contrib utions of these lines to x-ray spectra should be taken into account in the analysis of n = 4-2 Ne-Like linewidth diagnostics proposed for el ectron density measurements in compressed inertial confinement fusion plasmas.